Water-gage.



F. A.' POCOCK.

WATER GAGE.

APPLICATION FILED JUNE 22l |914. 1,227,196. Patented May 22,1917.

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WATER GAGE.

APPLICATION FILED JUNE 22. 1914.

Patented May 22, 1917.

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FRANCIS A. POCOGK, F PHILADELPHIA, PENNSYLVANIA.

WATER-GAGE.

' Specification of Letters Patent.

Patented May 22, 1917.

Application led June 22, 1914. Serial No. 846,456.

T0 all lwhom t may concern Be it known that I, FRANCIS A. Pococn,

a citizen of the United States, residing at Philadelphia, in the county of Philadelphia. and State of Pennsylvania, have invented new` and useful Improvements in Water- Gages, of which the following is a specification.

My invention relates to new and useful improvements in water gages, and has for its object to provide' an exceedingly simple and effective construction of such a gage as to produce a ronounced water line.

A further o ject of the' invention is to so the action of the water and steam, especially the latter which has a tendency'to eat away the inner-surface of the glass, causing leakage and necessitating the renewal of such glass.l f

With these ends in view this invention consists in the details. of construction and combination of elements hereinafter' set forth and then specifically designated by the 4 claims.I

In order that those. skilled inl the art `to which this invention appertains may underf stand how to make and use the same,I will describe its construction in detail, referring by numeral to the accompanying 4drawing forming a part of this specification, in

Figure 1, is a front elevation ofa water gage made in accordance with my improvement. y

Fig. 2, is a section at the line 22 of Fig. 1. f

Fig. '3, is a section at the line 3-3 of Fig. 2.

Fig. 4, is a section at the line 4-4 of Fig. 2.

Fig. 5, is an enlarged cross section of the internal reflex glass.

Fig. 6, is an inner end view of one of the object `of the invention isnipples showing.r the cross slot therein for permitting the steam vor Water to pass around the ball valves.

Fig. 7,'is a section similar to Fig. 3,'

showing the sight glass as being of the ordinary reflex type.

Fig. 8, is a perspective View of the casing which incloses the gage.

Fig. 9, is a front view of a slightly modiiiedform of my construction in which the nipples are cast with the body of the gage.

Fig. 10, is a central vertical section of Fig. 9. y l

Fig. 11', is a section at the line 5-5 of Fig. 10. i l

Fig. 12, is a still further modification of the construction in which the automatic shut-off ball valves'are omitted.

Fig. 13, is a section similar to Fig. 11 showing for the front of the gage which consists of alternate sections of mica and glass,

Fig. 14, is a section of an ordinary glass tube embodying my improved reiieX device.

Fig. 15, is a section of one form of the reiiex element.

Fig. 16, is a cross section of a slight modiiication of the reflex elements shown in Fig. 15.

Fig. 17, is a section of a further modification of the reflex element.

Fig. 18, is a further modification of the.

reflex element.

Fig. 19, shows a further modification of the lreflex element; and

Fig. 20', shows a still further modification of the reflex element.

In carrying out my invention as here embodied in Figs. 1 to 8 inclusive, 1 represents the body of the gage which has a longitudinal recess 2 therein Which recess is open on the face of the gage and is for holding the water and steam which is ,supplied thereto' through the nipples 3. Each -of the nipples turn are threaded into the ends of the body as indicated at 6.

Within each of the bushings is formed a.

valve seat 7 upon which a ball valve 8 is adapted to close and this ball valve is nora laminated transparent member A is threaded into a bushing 5 which latter in the inner end of the nipple 3 which is slotted as indicated at 10 to permit the steam or water to pass around the ball valve when 0H its seat.l

The recess 2 is closed by the sight glass 11 upon the inner face of which is a sheet of mica 12 between which and the'faceof the gage lies the packing or gasket 13 by which a steam tight joint is made between the mica and the face of the gage. Y

. 14 represents the casing which I prefer to make of cold drawn steel in order that it `may have relativelygreat strength, and'this casing has a longitudinal slot 15 in the front' face thereof, and is provided with a double row of set screws 16 upon the backthereof.l

By this arrangement when the sight glass is placed in position upon the face of the gage the casing is slipped over the gage and glass so as to entirely inclose the same-when by setting up the screws 16 the face ofthe casing willbe drawn firmly against the .outer surface of the glass or the packing 17 inter.- posedtherebetween, thereby making a steam tight joint between the sheet of mica and the face of the gage. L

-. -As the slot 15 in the casing is in alinement with the longitudinal recessin the body of the gage the water in the gage will be visible through the sight glass.

In order that the water in the gage may be made prominent to the eye, I insert a reflex glass 18 within the recess'2 of the body f' water and steam is intensified, the reason beT ing that the portion of the reflex glass which is below the water line, permits the free passage of light, thus showing .the black background, while the portion thereof which is above the water line does not permit the passage of the light, and where both surfaces are corrugated, this reflex action is increased, and the glass throws off a bright silyer appearance.

As before stated the ball valves 8 are nrmally held olf their seats by a spring 9, but 'should the sight glass break or crack sufficiently to leak, the unbalancing ofthe pressure in the recess of the gage and the boiler will cause an inflow of the water and steam, and upon the first movement of the water and steam, the ball valves will be firmly closed against their seats,- thus shutting off such inflow and preventing the scalding of the attendant. As soon as boiler pressure is shut off by the ball valves or otherwise, the spring 9 will -return the ball valves to their normal open positions.'

face thereof, while in the first described construction this reflex glass may be inserted in the recess through the holes in which the bushings y are threaded before the latter are screwed'in place.

In Fig. 12 I -haveshown the nipples 3 as being threaded directly into the ends of the body of the gage instead of into the bushi ings, which are in turn threaded into the body as before described.- If found Adesirable the ends of the casing may be closed by the caps 19, and these caps may be used las name plates.

The modification of the transparent l ment for the front of the gage shown in Fig. 13 consists of a sheet of mica 12, athick glassll, another sheetof mica 20, and another thick glass 21, all arranged ina pile which arrangement `givesstrength and pro-- tection to each member of the pile.

In Fig. 14 I have shown the reflex element 18 placed within a glass gage tube 28, said gage having a section thereof provided with a black background as indicated at 29, and

this black background may be blown in the glass or applied thereto as desired, and in connectionvwith the reex element 18 will cause the water in the tubeyto appear black, while the steam space will appear white or silver. Of course the background may be any prominent color instead of black', the Water appearing the color of this background. d y

' In Fig. 15 `I`have shown the reflex ele-` ment 18 in the form of a tube, the outersurface of which iscut or molded to produce the reflex effect, while the inner surface has applied thereto'or formed therewith a black background as indicated at 22. This form of reflexl element when placed in a round gage tube will give the water the appearance of the lcolor of the background from lany position at which the gage may be viewed.

In Fig. 16 I have shown the Areflex element 18 as consisting of a solid rod, the surface of which is cut or molded to give the 4reflex effect, while a core of black or any ldesired color is formed through the center thereof as indicated at 23.

In Fig. 17 I' have shown the reflex element 18 in the form of a glass having its surfaces cut or molded to produce the reflex effect, and to this element is secured a channel shaped element 24 which formsthe background and leaves a space between said background and the reflex element, which in practice I have found intensies the effect upon the water.

In Fig. 18 I have utilized the same principle as that shown in Fig. 17, but I4 provide two reflex elements 18 set atl anangle to each other, having a .background 25 attached thereto in such manneras to leave a space between the back of the elements and the background.

In Fig. 19 I have shown a slight modification of the reflex elements shown in Fig. 18,

in which thisrelex element 18 is'semi-circular, having the background 26 Aattached thereto.

In Fig. 20 I have shown two reflex elements 18 set back to back with a background section 27 interposed therebetween.

Of course I do not wish to be limited to the exact details of construction as herein shown, as these may be varied within the limits of the appended claims without departing from the spirit-oi` my invention.

Having thusfully described my invention,

lwhat I lclaim as new and useful, is-

' l. In a device of the character stated a slotted casing, a recessed body provided with bushings carrying nipples, and-'removably contained within said casing, a transparent lmember lying between the body and one of the walls of the casing, means carriedby the casing forl holding the parts together, and caps frictionally engaging the ends ot the casing for closing the same.

2. A water gage comprising a slotted casing, a recessed body removably contained within said casing, a transparent member lying carried by the casing for holding the parts together, a bushing carried by each end of the body, each of said bushings being provided with a valve seat and acting asa housing for a valve, a ball valve situated within each of said bushings, .a nipple threaded in each of said bushings for limiting the outward movement of the ball valve and means for normally holding said ball-valves unseated. l

3. A water gage comprising a slotted casing, a recessed body removably contained wit-hin said casing, a transparent member `lying between the casing and body, means lcarried by the casing for holding the parts together, a bushing carried by each'end of the body, each of said bushings being provided with a valve seat and acting as a housing'for a valve, a ball valve situated within each of said bushings, a nipple threaded in each of said bushings, the inner end of said nipples being slotted transversely, and means for normally holding the ball valve unseatedfand against the inner ends of said nipples.

4. A water gage comprising a slotted casing, a recessed body removably contained within said casing, a transparent member lying between the casingand body, means carried by the casing for holding the parts together, a bushing carried by each end of the body, each of said bushings being procasing betweenl the casing and body, means vided'with a valve 'seat and acting as aof the bushings and engaging the ball valve a ball valve situated' va nipple for normallyv holding the latter unseated. 4

and in contact with the slotted ends of the nipples!" 5. A water gage comprisinga rectangular casing provided with a slot in one of its sides, a recessed body` situated. within said casing with the recess toward the slot, a sight glass situated between the body and the slotted side of the casing` and disposed across the recess and slot, set screws passing through the wall of the casing oppositethe slot and arranged to engage the back of v the body for holding the parts .in position,

bushings carried by the ends of therbody,

each of said bushings having a valve seat and a spring chamber therein, said valve' seats being situated toward the inner ends of the bushings a ball valve within each of the bushings, springs for normally forcing said valves outward away from their seats and nipples threaded in said bushings, the inner ends of said nipples limiting the movements of the ball valves.

6.A A water gage comprising a rectangular provided with a slot in one of its sides, a recessed body situated within said casing with the recess toward the. s lot, a sight glass situated between the body and the slotted sideI ofthe casing and disposed Y across the recess and slot, vset screws'passing through a wall of the casing opposite the slot and arranged to. engage the back of thev body for holding the parts in position, closures frictionally engaging the ends of the casing for closing the same, bushings removably attached to the body and passing through` Said closures, each of said bushings having an internal valveseat, a ball valve situated within each of the bushings, a spring also situated within each of the bushings, for normally holding said ball, valves unseated, and nipples carried by said bushin s.

g. A water gage comprising a rectangular casing provided with a slot in one of its sides, a recessed body situated within said casing withthe recess toward the slot, a sight glass situated between the body and the slotted side ofthe casing and disposed across the recess and slot, set. screws passv ing through the wallof the 'casingopposite the slot and arranged to engage thevback of the body for holding the partsgin position, closures frictionally engaging `the ends of the casing for closing the same, bushings 'removably attached to the body and pass-- ing through said closures, each of said bushings `having an internal valve seat, a ball valve situated Within each of the bushings, In testimony whereof, I have hereunto a spring also situated Within each of 'the aiXed my signature in the presence of tWo bushings for normally holding said ball subscribing Witnesses.`

valves unseated, and a nipple threaded in FRANCIS A. POCOCK. each of 4said bushings, the inner ends of Witnesses: said nipples being slotted transversely as .M. E. HAMER, shown and for the purpose described. M. Toisms. 

